python 读一行就马上删除一行

timespace

回复 10# q1208c
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1. Optional in-place filtering: if the keyword argument inplace=True is passed to fileinput.input() or to the FileInput constructor, the file is moved to a backup file and standard output is directed to the input file (if a file of the same name as the backup file already exists, it will be replaced silently). This makes it possible to write a filter that rewrites its input file in place. If the backup parameter is given (typically as backup='.<some extension>'), it specifies the extension for the backup file, and the backup file remains around; by default, the extension is '.bak' and it is deleted when the output file is closed. In-place filtering is disabled when standard input is read.

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q1208c

回复 11# timespace


  
如果这也叫直接修改, 那我请问, 有多少修改是 "非直接" 的?

好吧, 我败了, 我闪还不行么.  

laike9m

我靠难道非得inode不变才能叫直接修改？楼主就是想读一行删一行你们非得加那么多定义限制。。。

laike9m

又看了一遍楼主的问题，根本就没出现“直接修改”这几个字嘛，达到目的不就行了

初识orcl

这个可以好好关注一下